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 Rika Sensor is a weather sensor manufacturer and environmental monitoring solution provider with 10+ years of industry experience.

WATER QUALITY SENSOR

The Dissolved Oxygen (DO) Sensor​​ leverages cutting-edge fluorescence quenching technology to deliver highly accurate and reliable dissolved oxygen measurements. Based on the principle that oxygen molecules quench the fluorescence of a specially coated film when exposed to excitation light, this sensor calculates oxygen concentration by measuring fluorescence decay time. Combined with ​​simultaneous temperature measurement​​, it provides real-time data via RS485 and 4–20mA outputs. Engineered for minimal maintenance, it boasts a ​​lifespan exceeding 2 years​​ without recalibration, making it ideal for demanding environments such as chemical plants, aquaculture systems, and wastewater treatment facilities.
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